{"id":1250,"date":"2013-03-28T03:07:38","date_gmt":"2013-03-28T03:07:38","guid":{"rendered":"http:\/\/www.pycheung.com\/weblog\/?p=1250"},"modified":"2013-03-28T03:12:23","modified_gmt":"2013-03-28T03:12:23","slug":"opengl-note-drawing-concave-polygon","status":"publish","type":"post","link":"https:\/\/www.pycheung.com\/weblog\/post\/1250","title":{"rendered":"OpenGL note: drawing concave polygon"},"content":{"rendered":"<p>          <img loading=\"lazy\" src=\"http:\/\/www.pycheung.com\/weblog\/wp-content\/uploads\/zrtn_001n5e4a636f_tn.jpg\" style=\"BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-TOP: #000000 1px; BORDER-RIGHT: #000000 1px\" height=\"285\" width=\"800\" alt=\"GLUtesselator.jpg\" border=\"0\"\/>        <\/p>\n<p>Drawing concave polygons and polygon with holes in OpenGL using GLUtesselator. <\/p>\n<p><img loading=\"lazy\" src=\"http:\/\/www.pycheung.com\/weblog\/wp-content\/uploads\/zrtn_002p4d842a6e_tn.jpg\" style=\"BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-TOP: #000000 1px; BORDER-RIGHT: #000000 1px\" height=\"285\" width=\"800\" alt=\"GL_polygon.jpg\" border=\"0\"\/> <br \/>Basic OpenGL (GL_POLYGON ) only renders convex polygons. <\/p>\n<p>reference: <br \/><a href=\"http:\/\/www.glprogramming.com\/red\/chapter11.html\">http:\/\/www.glprogramming.com\/red\/chapter11.html<\/a>        <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Drawing concave polygons and polygon with holes in OpenGL using GLUtesselator. Basic OpenGL (GL_POLYGON ) only renders convex polygons. reference: http:\/\/www.glprogramming.com\/red\/chapter11.html<\/p>\n","protected":false},"author":2,"featured_media":1251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[158],"tags":[26,74],"_links":{"self":[{"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/posts\/1250"}],"collection":[{"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/comments?post=1250"}],"version-history":[{"count":3,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/posts\/1250\/revisions"}],"predecessor-version":[{"id":1254,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/posts\/1250\/revisions\/1254"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/media\/1251"}],"wp:attachment":[{"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/media?parent=1250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/categories?post=1250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pycheung.com\/weblog\/wp-json\/wp\/v2\/tags?post=1250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}